What intervention is used for treating stable SVT?

Cervical vagal stimulation is an intervention used for treating stable supraventricular tachycardia (SVT) because it aims to increase vagal tone, which can help slow down the heart rate by affecting the electrical pathways of the heart. This technique often includes maneuvers such as the Valsalva maneuver, which involves the patient performing a forced expiration against a closed airway, or carotid sinus massage, both of which stimulate the vagus nerve. When successful, these maneuvers can revert the heart rhythm back to normal sinus rhythm without the need for medications or other more invasive treatments.

In patients with stable SVT, this non-invasive method is often the first line of treatment because it is safer and can be performed quickly at the bedside. Other methods such as intravenous medications or electrical cardioversion may be considered in cases where vagal maneuvers are ineffective, but cervical vagal stimulation is a preferred initial approach in stable situations.

While immediate hospitalization may be necessary for monitoring or in critical cases, stable SVT does not typically warrant such an urgent measure unless complications arise. Thus, the choice of cervical vagal stimulation aligns with the goal of quickly and safely managing a stable SVT episode.